The strand wheel is very sharp and can remove the grass from lawns, gardens and aisles, and is very suitable for cutting the heavier areas Use a disk to remove rust Metal. Grassmelper gearbox blade blade blade cap nut, used to connect the saw blade, the cutting head to the turkey to the turkey Install a right tree cutting machine described: Material: Steel wire and aluminum alloy Diameter: 15cm Hole diameter: 25.4 mm Packing: 15x15x6cm The package includes: 1 x head trimmer 1 Little threaded nut M10 x 1.25 Notice: 1. Make sure to hold the corner grinder firmly 2. Use adequate security protection devices